new member in wales building a hawk

**ProtoTipo** · 19-01-2019, 09:05

For the Integrale / Alfa 147 (twin spark) hub, the wheel bearing size is 72mm OD x37mm ID x37mm thick.

**Stableblock** · 19-01-2019, 10:39

I have vague recollection that very early Betas did have unequal length halfshafts, I think the centre bearing was an early mod? I stand to be corrected though.
So if you have unequal you would need the short cross shaft and the bearing assembly and mounting as well as the half shaft to the wheel.

Peter

**Guy Mayers** · 19-01-2019, 11:10

Yes Peter, first series Betas had a normal length left shaft and a very long right shaft but that changed very early on to equal length ones with an intermediate shaft incorporating the engine mounts we're all familiar with. Current Hawk builders obviously don't need the Beta intermediate shaft assembly, just the outer shafts mated to the Alfa intermediate with spacer adaptor plates to bridge the gaps and cope with the difference PCD's between the Alfa drive flanges and the Beta inner CV joints.

Guy

**strat24v** · 19-01-2019, 12:07

Makes more sense to not bother with drive shaft adaptors and just have a pair of new shafts made.

**ProtoTipo** · 19-01-2019, 13:07

The inter shaft is a front wheel drive feature.
Rear wheel drive Lancia Montecarlos (for example) don't have an inter shaft.
The Monte right hand long shaft is tubular/welded.

**jock hawk** · 21-01-2019, 21:16

hi thank you for that info guys im only thought that the shafts were different lengths because because of the rear support bracket,as this has always been the case on the cars iv worked on in the past , the shaft was already here sure it will be fine . the rear hub that should take the beta bearing is not the case on the hub i have as the o/d is 80mm 37x37 hopefully have one from my parts man tomorrow. have tryed again to up load pic but once hit upload, it looses the page after a few mins of uploading ?

**ProtoTipo** · 22-01-2019, 09:45

Originally Posted by jock hawk

the rear hub that should take the beta bearing is not the case on the hub i have as the o/d is 80mm 37x37

If the rear hub you have takes an OD 80mm wheel bearing, you are supposed to fit an Alfa drive flange and wheel bearing (40mm ID).
If that's the case, NOT an Integrale/Alfa 147 drive flange and OD 72mm bearing (37mm ID).
Don't quote me on the above. Get someone to second that.